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可降解餐盒去除地下水硝酸盐的砂槽模拟实验研究

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褚华男, 汪家权, 陈晨, 代素红. 可降解餐盒去除地下水硝酸盐的砂槽模拟实验研究[J]. 环境工程学报, 2014, 8(4): 1361-1366.
引用本文: 褚华男, 汪家权, 陈晨, 代素红. 可降解餐盒去除地下水硝酸盐的砂槽模拟实验研究[J]. 环境工程学报, 2014, 8(4): 1361-1366.
shu
Chu Huanan, Wang Jiaquan, Chen Chen, Dai Suhong. Study on biodegradable meal box by using sand tank test to remove nitrate in groundwater[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1361-1366.
Citation: Chu Huanan, Wang Jiaquan, Chen Chen, Dai Suhong. Study on biodegradable meal box by using sand tank test to remove nitrate in groundwater[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1361-1366.
shu

可降解餐盒去除地下水硝酸盐的砂槽模拟实验研究

  • 1.

    合肥工业大学资源与环境工程学院, 合肥 230009

  • 基金项目:

    国家“水体污染控制与治理”科技重大专项（2012ZX-07103-004）

  • 中图分类号: X523

Study on biodegradable meal box by using sand tank test to remove nitrate in groundwater

  • 1.

    College of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China

  • Fund Project:

  • 摘要: 采用室内砂槽实验装置，研究了以可降解餐盒（BMB）为反硝化碳源的生物反应器对于模拟污水中硝酸盐的去除效果及其影响因素。结果表明，以BMB为反硝化碳源的反应器启动时间短。当进水硝酸盐浓度为50 mg/L，水温为25℃，水力停留时间为1.15 d时，硝酸盐的去除率可达92.6%以上，实验过程中出现亚硝酸盐积累，出水TOC浓度上升，但反应稳定后亚硝酸盐浓度均低于0.1 mg/L，且TOC浓度有下降趋势；水力停留时间减小或者进水硝酸盐浓度增加均能使得脱氮效率降低，但当水力停留时间在0.57~1.15 d，进水硝酸盐浓度在50~80 mg/L范围变化时，反应器硝酸盐去除效率仍能达到80%以上；温度对反硝化作用影响较大，当温度为（20±1）℃时，硝酸盐的去除效率仅为62.0%、74.4%和97.5%。
    Abstract: Through the indoor sand tank experiment,the removal and its influencing factors of nitrate in groundwater were investigated by using the biodegradable meal box (BMB) as the carbon source in laboratory bioreactor.The results indicated that the startup of the reactor was fast and the nitrate removal efficiency could reach more than 92.6% at 25℃ and the hydraulic retention time (HRT) of 1.15 d when the influent nitrate concentration was 50 mg/L.Although the accumulation of nitrite was observed and the TOC increased in this process,the nitrite was less than 0.1 mg/L and the concentration of TOC got the trend of decreasing in the end. Decreasing HRT or increasing influent nitrate concentration could make the efficiency of denitrification reduce,but the nitrate removal efficiencies were above 80% when the HRT was between 0.57~1.15 d,or the nitrate concentration in the influent ranging between 50~80 mg/L.The impact of temperature on denitrification was greater.The nitrate removal efficiencies were only 62.0%,74.4% and 97.5%,respectively when the temperature was (20±1)℃.
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出版历程
  • 收稿日期:  2013-03-21
  • 刊出日期:  2014-03-28
褚华男, 汪家权, 陈晨, 代素红. 可降解餐盒去除地下水硝酸盐的砂槽模拟实验研究[J]. 环境工程学报, 2014, 8(4): 1361-1366.
引用本文: 褚华男, 汪家权, 陈晨, 代素红. 可降解餐盒去除地下水硝酸盐的砂槽模拟实验研究[J]. 环境工程学报, 2014, 8(4): 1361-1366.
shu
Chu Huanan, Wang Jiaquan, Chen Chen, Dai Suhong. Study on biodegradable meal box by using sand tank test to remove nitrate in groundwater[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1361-1366.
Citation: Chu Huanan, Wang Jiaquan, Chen Chen, Dai Suhong. Study on biodegradable meal box by using sand tank test to remove nitrate in groundwater[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1361-1366.
shu

可降解餐盒去除地下水硝酸盐的砂槽模拟实验研究

  • 1. 合肥工业大学资源与环境工程学院, 合肥 230009
  • 收稿日期:  2013-03-21
基金项目:

国家“水体污染控制与治理”科技重大专项（2012ZX-07103-004）

摘要: 采用室内砂槽实验装置，研究了以可降解餐盒（BMB）为反硝化碳源的生物反应器对于模拟污水中硝酸盐的去除效果及其影响因素。结果表明，以BMB为反硝化碳源的反应器启动时间短。当进水硝酸盐浓度为50 mg/L，水温为25℃，水力停留时间为1.15 d时，硝酸盐的去除率可达92.6%以上，实验过程中出现亚硝酸盐积累，出水TOC浓度上升，但反应稳定后亚硝酸盐浓度均低于0.1 mg/L，且TOC浓度有下降趋势；水力停留时间减小或者进水硝酸盐浓度增加均能使得脱氮效率降低，但当水力停留时间在0.57~1.15 d，进水硝酸盐浓度在50~80 mg/L范围变化时，反应器硝酸盐去除效率仍能达到80%以上；温度对反硝化作用影响较大，当温度为（20±1）℃时，硝酸盐的去除效率仅为62.0%、74.4%和97.5%。

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